Hi,
Andreas_Resch wrote:Is it possible to have a "normal" pass (containing) all the objects and the shadow pass in one rendering like in the image below?
That's what render-layers are for. There isn't any single AOV in any renderer that is a substitute to render-layers.
Andreas_Resch wrote:I know it's possible to use render layers, but that would mean twice the render time.
Wherever you read that, that's an erroneous information, or misinterpreted/misunderstood?
If you are new to Octane, I would strongly recommend to consult some of
these pages, such as "Kernel Settings" and any other one that may be helpful to you.
While I personally don't recommend it, multi-layer EXR is possibly what you meant to imply, AOVs (or "passes") into a single file. Disadvantages are essentially that all-in-one-single-file impacts on "performance", and having them separately provides higher flexibility and control.